70 A PPENDIX A: S PECIFICATIONS AND C ABLING R EQUIREMENTSStandards Conformancen IEEE 802.3 10BASE-Tn IEEE 802.3u 100BASE-TXn IEEE 802.3x Full Duplex auto-negotiation andflow controln NWay 10/100 auto-negotiationn IEEE 802.1p/Qn IEEE 802.1Q VLAN Taggingn RMONn Microsoft PC97n Microsoft PC98n Microsoft PC99n Net PCn PCI 2.2n DMI 2.0 and 2.0sn ACPI 1.0n Wired for Management 1.1a, 2.0n Pre-OS boot protocol support (PXE, BootP/DHCP,NCP, RPL)Cabling RequirementsThe cable, quality, distance, and connectors must comply withthe Electronic Industries Association/TelecommunicationsIndustries Association (EIA/TIA) 568 Commercial BuildingWiring Standard and the Technical Services BulletinTSB38 standards.Twisted-Pair CableTwisted-pair cable consists of copper wires surrounded byan insulator. Two wires are twisted together (the twistingprevents interference problems) to form a pair, and the pairforms a circuit that can transmit data. A cable is a bundle ofone or more twisted pairs surrounded by an insulator.Unshielded twisted pair (UTP) is the most commonly usedtype of twisted-pair cable. Shielded twisted pair (STP)provides protection against crosstalk. Twisted-pair cable isnow commonly used in Ethernet, Fast Ethernet, and othernetwork topologies.
